CN203352348U - Motor combined-type sealing structure - Google Patents
Motor combined-type sealing structure Download PDFInfo
- Publication number
- CN203352348U CN203352348U CN 201320463173 CN201320463173U CN203352348U CN 203352348 U CN203352348 U CN 203352348U CN 201320463173 CN201320463173 CN 201320463173 CN 201320463173 U CN201320463173 U CN 201320463173U CN 203352348 U CN203352348 U CN 203352348U
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- China
- Prior art keywords
- ring
- shaft extension
- sealing structure
- sealing ring
- extension end
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 230000003068 static effect Effects 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 239000011499 joint compound Substances 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a motor combined-type sealing structure. The motor combined-type sealing structure comprises a shaft extension end (1) of a rotor and an end cover (3); a frame sealing structure (4) is arranged between the end cover (3) and the shaft extension end (1); a movable sealing structure is arranged between the end cover (3) which is arranged at the axial outer side of the frame sealing structure (4) and the shaft extension end (1); the movable sealing structure comprises a movable sealing ring (5) which is arranged at one side where the shaft extension end is arranged and a fixed sealing ring (6) which is arranged at one side where the end cover is arranged; and a contact portion of the movable sealing ring (5) and the fixed sealing ring (6) is provided with an axial twisted path sealing structure. The motor combined-type sealing structure of the utility model has the advantages of simple structure, convenient installation and replacement and reasonable design. With a noncontact movable sealing/contact fixed sealing-combined waterproof structure adopted, water, mud, sand and dust can be effectively prevented from entering a motor, and impact on the frame sealing structure can be decreased, and therefore, sealing performance can be enhanced, and the service life of the frame sealing structure can be prolonged, and reliable performance can be realized.
Description
Technical field
The utility model relates to the box-like hermetically-sealed construction of motor seal technical field, particularly group of motors.
Background technology
The new energy electric motor vehicle direct driving motor directly is placed in vehicle bottom, with power transmission shaft, is connected, and the machine operation environment is severe, very easily is subject to the impact of water, mud, sand and dust.If motor front end protection is improper, very easily causes bearing damage, and then cause electrical fault.In addition, because the position of placing motor is lower, easily be immersed in water, can damage motor equally, affect vehicle operating.Because motor shaft is rotating parts, so the waterproof of axle perforation place is difficult to assurance, motor is easily intake, and even burns, and affects the useful life of motor.Existing motor sealing structure adopts reinforced seal more, but seal is easily affected by environment, and seal life shortens, and electric machine main shaft easy to wear, therefore motor needs often maintenance, can not meet instructions for use.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of simple in structure, install and change convenient, as the to have extended reinforced seal useful life box-like hermetically-sealed construction of group of motors.
The purpose of this utility model is achieved through the following technical solutions: the box-like hermetically-sealed construction of group of motors, it comprises shaft extension end and the end cap of rotor, the shaft extension end is installed on end cap by bearing, be provided with reinforced seal between end cap and shaft extension end, be provided with movable sealing between the end cap outside described reinforced seal axially and shaft extension end, described movable sealing comprises the static sealing ring that is arranged at the distolateral dynamic seal ring of shaft extension and is arranged at the end cap side, be provided with O-ring seals A between dynamic seal ring and shaft extension end, be provided with O-ring seals B between static sealing ring and end cap, the contact site of dynamic seal ring and static sealing ring is provided with the axial labyrinth seal structure.
Described labyrinth seal structure comprises the annular groove that is arranged at the dynamic seal ring radially-outer surface and the annular ridge A that is arranged at the static sealing ring inner radial surface, and the annular ridge A of static sealing ring is arranged in the annular groove of dynamic seal ring.
Be positioned at the height of annular ridge A of static sealing ring of axial sides of described dynamic seal ring higher than the degree of depth of the annular groove of dynamic seal ring.
The radially-outer surface of dynamic seal ring that is positioned at the axial sides of described static sealing ring is provided with annular ridge B, and the height of annular ridge B is greater than the height of the annular ridge A that is positioned at annular groove.
The utlity model has following advantage: the utility model is simple in structure, it is convenient, reasonable in design to install and change, the waterproof construction that adopts contactless movable sealing to combine with the contact static seal, the tradition reinforced seal still retains its function, and while preventing the motor waterflooding, water can enter motor fast; Increase by a movable sealing in the outside of reinforced seal, when rotating, can effectively prevent by motor that sealing, mud, sand and dust enter motor internal, the impact of minimizing on reinforced seal, thereby strengthened sealing property, reinforced seal is effectively protected, extended the useful life of reinforced seal, motor dabble and two kinds of situations of waterflooding under, all can guarantee that motor do not invaded by foreign matter; And this dynamic sealing device adopts high-abrasive material, not easy to wear, dependable performance.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure, 1-shaft extension end, 2-bearing, 3-end cap, 4-reinforced seal, 5-dynamic seal ring, 6-static sealing ring, 7-O-ring seals A, 8-O-ring seals B, 9-annular groove, 10-annular ridge A, 11-annular ridge B.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection range of the present utility model is not limited to the following stated:
As shown in Figure 1, the box-like hermetically-sealed construction of group of motors, it comprises shaft extension end 1 and the end cap 3 of rotor, shaft extension end 1 is installed on end cap 3 by bearing 2, be provided with reinforced seal 4 between end cap 3 and shaft extension end 1, axially end cap 3 and 1, the shaft extension end in the outside are provided with movable sealing in described reinforced seal 4, described movable sealing comprises the dynamic seal ring 5 that is arranged at shaft extension end 1 side and the static sealing ring 6 that is arranged at end cap 3 sides, be provided with O-ring seals A7 between dynamic seal ring 5 and shaft extension end 1, be provided with O-ring seals B8 between static sealing ring 6 and end cap 3, the contact site of dynamic seal ring 5 and static sealing ring 6 is provided with the axial labyrinth seal structure.
Described labyrinth seal structure comprises the annular groove 9 that is arranged at dynamic seal ring 5 radially-outer surfaces and the annular ridge A10 that is arranged at static sealing ring 6 inner radial surface, and the annular ridge A10 of static sealing ring 6 is arranged in the annular groove 9 of dynamic seal ring 5.
Be positioned at the height of annular ridge A10 of static sealing ring 6 of axial sides of described dynamic seal ring 5 higher than the degree of depth of the annular groove 9 of dynamic seal ring 5.
The radially-outer surface of dynamic seal ring 5 that is positioned at the axial sides of described static sealing ring 6 is provided with annular ridge B11, and the height of annular ridge B11 is greater than the height of the annular ridge A10 that is positioned at annular groove 9.
O-ring seals A7 can prevent that foreign matter from entering into the next stage sealing by main shaft, and O-ring seals B8 can prevent that foreign matter from entering into the next stage sealing by end cap 3.When electric machine main shaft rotates, relative motion between dynamic seal ring 5 and static sealing ring 6, have a minimum gap between the two, can be in the situation that less wear or do not wear and tear and prevent that various foreign matters from entering secondary seal, thus reach protection.Movable sealing can effectively prevent that foreign matter from entering motor from the gap of main shaft and end cap 3.
Claims (4)
1. the box-like hermetically-sealed construction of group of motors, it comprises shaft extension end (1) and the end cap (3) of rotor, shaft extension end (1) is installed on end cap (3) by bearing (2), be provided with reinforced seal (4) between end cap (3) and shaft extension end (1), it is characterized in that: between the end cap (3) outside described reinforced seal (4) axially and shaft extension end (1), be provided with movable sealing, described movable sealing comprises the dynamic seal ring (5) that is arranged at shaft extension end (1) side and is arranged at the static sealing ring (6) of end cap (3) side, be provided with O-ring seals A(7 between dynamic seal ring (5) and shaft extension end (1)), be provided with O-ring seals B(8 between static sealing ring (6) and end cap (3)), the contact site of dynamic seal ring (5) and static sealing ring (6) is provided with the axial labyrinth seal structure.
2. the box-like hermetically-sealed construction of group of motors according to claim 1, it is characterized in that: described labyrinth seal structure comprises the annular groove (9) that is arranged at dynamic seal ring (5) radially-outer surface and the annular ridge A(10 that is arranged at static sealing ring (6) inner radial surface), the annular ridge A(10 of static sealing ring (6)) be arranged in the annular groove (9) of dynamic seal ring (5).
3. the box-like hermetically-sealed construction of group of motors according to claim 1 is characterized in that: the height annular ridge A(10 of static sealing ring (6) that is positioned at the axial sides of described dynamic seal ring (5)) is higher than the degree of depth of the annular groove (9) of dynamic seal ring (5).
4. the box-like hermetically-sealed construction of group of motors according to claim 1, it is characterized in that: the radially-outer surface of dynamic seal ring (5) that is positioned at the axial sides of described static sealing ring (6) is provided with annular ridge B(11), annular ridge B(11) height be greater than the annular ridge A(10 that is positioned at annular groove (9)) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320463173 CN203352348U (en) | 2013-07-31 | 2013-07-31 | Motor combined-type sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320463173 CN203352348U (en) | 2013-07-31 | 2013-07-31 | Motor combined-type sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352348U true CN203352348U (en) | 2013-12-18 |
Family
ID=49752198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320463173 Expired - Fee Related CN203352348U (en) | 2013-07-31 | 2013-07-31 | Motor combined-type sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401341A (en) * | 2013-07-31 | 2013-11-20 | 东方电气集团东风电机有限公司 | Motor combined hermetically-sealed structure |
| CN106329788A (en) * | 2016-08-31 | 2017-01-11 | 无锡太昌精密机械有限公司 | Connection structure of motor cover and motor base |
-
2013
- 2013-07-31 CN CN 201320463173 patent/CN203352348U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401341A (en) * | 2013-07-31 | 2013-11-20 | 东方电气集团东风电机有限公司 | Motor combined hermetically-sealed structure |
| CN103401341B (en) * | 2013-07-31 | 2015-08-05 | 东方电气集团东风电机有限公司 | The box-like hermetically-sealed construction of group of motors |
| CN106329788A (en) * | 2016-08-31 | 2017-01-11 | 无锡太昌精密机械有限公司 | Connection structure of motor cover and motor base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160731 |